raze/source/games/blood/src/aiinnoc.cpp
2021-12-30 16:51:56 +01:00

111 lines
3.7 KiB
C++

//-------------------------------------------------------------------------
/*
Copyright (C) 2010-2019 EDuke32 developers and contributors
Copyright (C) 2019 Nuke.YKT
This file is part of NBlood.
NBlood is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License version 2
as published by the Free Software Foundation.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
//-------------------------------------------------------------------------
#include "ns.h" // Must come before everything else!
#include "build.h"
#include "blood.h"
BEGIN_BLD_NS
static void innocThinkSearch(DBloodActor*);
static void innocThinkGoto(DBloodActor*);
static void innocThinkChase(DBloodActor*);
AISTATE innocentIdle = { kAiStateIdle, 0, -1, 0, NULL, NULL, aiThinkTarget, NULL };
AISTATE innocentSearch = { kAiStateSearch, 6, -1, 1800, NULL, aiMoveForward, innocThinkSearch, &innocentIdle };
AISTATE innocentChase = { kAiStateChase, 6, -1, 0, NULL, aiMoveForward, innocThinkChase, NULL };
AISTATE innocentRecoil = { kAiStateRecoil, 5, -1, 0, NULL, NULL, NULL, &innocentChase };
AISTATE innocentTeslaRecoil = { kAiStateRecoil, 4, -1, 0, NULL, NULL, NULL, &innocentChase };
AISTATE innocentGoto = { kAiStateMove, 6, -1, 600, NULL, aiMoveForward, innocThinkGoto, &innocentIdle };
static void innocThinkSearch(DBloodActor* actor)
{
aiChooseDirection(actor, actor->xspr.goalAng);
aiThinkTarget(actor);
}
static void innocThinkGoto(DBloodActor* actor)
{
assert(actor->spr.type >= kDudeBase && actor->spr.type < kDudeMax);
DUDEINFO* pDudeInfo = getDudeInfo(actor->spr.type);
int dx = actor->xspr.TargetPos.X - actor->spr.pos.X;
int dy = actor->xspr.TargetPos.Y - actor->spr.pos.Y;
int nAngle = getangle(dx, dy);
int nDist = approxDist(dx, dy);
aiChooseDirection(actor, nAngle);
if (nDist < 512 && abs(actor->spr.ang - nAngle) < pDudeInfo->periphery)
aiNewState(actor, &innocentSearch);
aiThinkTarget(actor);
}
static void innocThinkChase(DBloodActor* actor)
{
if (actor->GetTarget() == nullptr)
{
aiNewState(actor, &innocentGoto);
return;
}
assert(actor->spr.type >= kDudeBase && actor->spr.type < kDudeMax);
DUDEINFO* pDudeInfo = getDudeInfo(actor->spr.type);
if (!actor->ValidateTarget(__FUNCTION__)) return;
auto target = actor->GetTarget();
int dx = target->spr.pos.X - actor->spr.pos.X;
int dy = target->spr.pos.Y - actor->spr.pos.Y;
aiChooseDirection(actor, getangle(dx, dy));
if (target->xspr.health == 0)
{
aiNewState(actor, &innocentSearch);
return;
}
if (target->IsPlayerActor())
{
aiNewState(actor, &innocentSearch);
return;
}
int nDist = approxDist(dx, dy);
if (nDist <= pDudeInfo->seeDist)
{
int nDeltaAngle = ((getangle(dx, dy) + 1024 - actor->spr.ang) & 2047) - 1024;
int height = (pDudeInfo->eyeHeight * actor->spr.yrepeat) << 2;
if (cansee(target->spr.pos.X, target->spr.pos.Y, target->spr.pos.Z, target->sector(), actor->spr.pos.X, actor->spr.pos.Y, actor->spr.pos.Z - height, actor->sector()))
{
if (nDist < pDudeInfo->seeDist && abs(nDeltaAngle) <= pDudeInfo->periphery)
{
aiSetTarget(actor, actor->GetTarget());
if (nDist < 0x666 && abs(nDeltaAngle) < 85)
aiNewState(actor, &innocentIdle);
return;
}
}
}
aiPlay3DSound(actor, 7000 + Random(6), AI_SFX_PRIORITY_1, -1);
aiNewState(actor, &innocentGoto);
actor->SetTarget(nullptr);
}
END_BLD_NS